LE Chapter 3 Test Review: Communities, Biomes & Ecosystems Pt.2

How would a tornado affect populations that are dense or scarce?

• Both populations would be affected the same no matter the size/density.

• Dense populations would suffer more damage due to higher infrastructure.

• Scarce populations would be less affected due to fewer structures.

• Tornadoes only affect urban areas significantly.

Lichens and mosses that first live in uninhabited areas are examples of...

• Pioneer organisms

• Invasive species

• Keystone species

• Endemic species

Flat land biome with hooved animals that spend their days grazing

• Desert

• Forest

• Grassland

• Tundra

This biome has a vast coniferous forest. Spruce trees and moose dominant the region.

• Boreal Forest/Taiga

• Tropical Rainforest

• Savanna

• Desert

Primary succession always begins with...

• soil

• water

• rock

• vegetation

QUESTION: Population A has 20 organisms living in a 2 square kilometer area, while population B has 30 organisms living in a 3 square kilometer area. Which is population size is greater?

• Population A has a greater size than population B

• Population B has a greater size than population A

• Both populations have the same size

• Population A and B cannot be compared

Permafrost is...

• soil that remains permanently frozen

• a type of ice found in glaciers

• a layer of soil that is always dry

• a type of rock that forms in cold climates

Lichens and Mosses have just begun to grow on rock in this barren area. What can directly begin to happen from the lichens and mosses growing on the rock?

• early and primitive soil formation

• increased rock erosion

• growth of larger plants

• formation of new rock layers

Which biome do these statements apply to?
-Extreme temperature fluctuation from the day to the nightfall
-little to no annual rainfall
-limited organisms that have adapted to survive harsh limiting factors

• Tundra

• Rainforest

• Desert

• Savanna

Examples of deciduous trees include...

• Maples, oaks, and beech trees

• Pine trees

• Cypress trees

• Redwoods